Vid 19 Piaggio Vespa ET2 Fuel Supply Problem Part 2
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- เผยแพร่เมื่อ 17 ต.ค. 2024
- Vid 19 Piaggio Vespa ET2 Fuel Supply Problem Part 2. This is the final video in this saga to get the Piaggio Vespa ET2 running correctly.
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Dude you are a legend. I’m just about to buy an ET2, my first ever moped, which has a stated first day start problem - so your videos have been really useful
I started watching your videos when I needed help on a Honda suitcase generator! You have never let me down, well done, I wish I could shake your hand! WELL DONE AND THANK YOU.
Fantastic Martin, this is half the fun of fixing things yourself when it all works, all the frustration goes to be left with satisfaction.
Yes Ian, and I learned a thing or two lol
You are persistant as always, Well done Mart. One of the best uploaders on the Net.
Baz.
Haha Baz, Don't know about that but I have a go lol
Your determination to rectify the problem paid off in the end, well done. Cheers Malcolm
Yes Malc, I don't like to be beat lol
Glad you figured it out, Martin. Evidently there was something in the carburetor itself that fixed the real issue with the good cleaning.
Yes I think so too George.
Hi Martin gad you stored it out sounds like its running great.
A classic mistake which i still do myself is changing more than one thing it could be and causing another problem.
Signs of cutting out after full throttle at tick over fuel in the bowl not high enough to reach idle jet but i'm a bit late watching your video.
These small engines are so sensitive to changes spark plug type exact gap ,air filter and airflow after re jet , belt changes and springs will bog as gearing changes at wrong engine rpm.
The biggest lesson i have learnt is don't always think because its new its not faulty, I had a brand new carb and still had problems changed everything coilpack, stator and flywheel, pickup. reedblock and reeds all the expensive stuff only to find it was the new carb that was faulty.
Keep those video's coming love watching them.
A fairly deep little sieve would work great for small parts in that ultrasonic cleaner! Great video as usual, real treat to get a 40 minute episode!
Brilliant vids Martin, really glad you finished the series off with the bike running properly , I was disappointed for you when it let you down after all that work, I've been there many times myself
yes Pete, I had to overcome that problem. Not the first time and not the last either I bet lol
Good work Martin, issues like that are a pain, but you got it sorted. That scooter has turned out so well. Cheers
Thanks Pete, yes, a bit of a brain teaser this was lol
Nice job thinking your way through a frustrating problem. Had the same problem with a moped I worked on for my sister-in-law. To start with someone had the thing hydro-locked with oil pouring out of the fill hole when it was not running! I actually got it started after fixing that problem and messed around with it for a couple of days and finally got it up to 45 mph five times in a row without it bogging down and was doing back flips when I got back home! When I gave it back to her I told her I wouldn't be disappointed if I never saw it again! So far she has left me alone. I guess she got the message! Frustrating little things.
Haha, yes Jack especially if someone else has been tinkering with them as well lol
Hy Jack, never heard about hydro locking
Too much oil in the crankcase won't allow the engine to turn over. Can also happen if you have a carb that is malfunctioning and dumping fuel into the crankcase. The fluid pressure "locks" the piston in place thus no start. It can also happen with coolant in a liquid cooled engine.
Ok, just checked the oil level on my scooter and its ok
Mine always depended on getting the air filter box back on correctly. Glad you got it sorted great vid
Cheers Paul.
Hy Paul, what do you mean by having the air box back on correctly? The carburetor should work fine even if it s disconected from it, shouldn t it?
Air leaks can lead to a weak fuel/air mixture which in turn will affect performance and could potentially damage the engine if running too lean.
Good to know Martin, thank you, i m trying to start my scooter while having the air filter disconected ( i have a vespa sprint 4 stroke, new model 2014 -2016); what do you advise me to do? Also i have vacuum from the engine pulling the fuel into the carburetor; if i take the carburetor out i ll find fuel in the constant level chamber but the intake manifold is dry as bone
Well done Martin perseverance really pays off mate!!
Yes Dan, we got there in the end and learned a thing or two.
Done and dusted Martin turned out a really nice bike your brother should be happy .
Yes he is Col, He's well chuffed, its a great little scooter now.
After working on this kind of bike for some years it's always something simple. I always started with a 72 jet then worked my way up until it ran smooth not all the little piaggio t2 scooters ran on the same jet size as all had slight differences in performance. THE nrg always seemed very responsive after derestricted especially the water cooled ones
Martin I had this on my yamaha jog and although it felt like fuel restrictions it was because it was getting too much air through the air filter. It really felt like fuel restrictions and the petcock had a diaphragm in which was worn out. However once it started it ran fine.
A good clean in the ultra sonic cleaner and a new vacuum init sorted it Paul.
Cheers
Martin
It was like being on board with Valentino at the end. Amazing transformation.
Thanks martin you're videos provide such a good source of information I'm sure many have benefitted from you're information 👍👍
Cheers bud. Glad you enjoyed these vids.
retrorestore thanks martin😆👍
I was waiting for a wheelie martin, them were the days i know because im one month older than you.
Love all your vids keep then coming.
Haha, on my 350LC but not on this Pete lol
Happy for you that you fixed it your a clever bloke when you put your mind to things great video series thanks for uploading and taking the time to do these sort of things even if it is a hobby
Thanks bud, we got there in the end.
Cheers
Martin
Love your perseverance Martin 😊 Most people would have chucked it away buy now lol 😝 Onto your next fix top stuff 😁
Yes' it was a teaser this one lol, we got there in the end thanks to the new vacuum unit and a good clean in the sonic cleaner.
Great job getting that fixed, them problems can be a right pain. Pleased for you that you got it sorted🙂👍
Thanks bud, yes it was a brain teaser but we got there.
Hi Martin,
Sometimes in the video I saw little steam clouds coming out from your technical working brain ;-)
You did a great job, and I think the scooter is now fast enough.
cheers
Glad that’s done. Got me thinking about getting one now :-). Now onto the trotter van
Great set of videos on the scooter, good to see it running well. Will be a big help working on mine cheers
Just saw the end of the vid , well done mate.
Thanks bud.
Amazing camera angles
Great video. Kept my interest start to finish.
Glad you enjoyed the vids bud.
glad you got the fuel starvation sorted --- i think you might get a little more performance by reducing the main jet to a 58 (i was told as a rule of thumb to add 5 to the main jet size when de-restricting ), a 56 mentioned elsewhere may work but with the aftermarket exhaust (is it a geovinci?) might make it a touch lean at full throttle ----- if you want to test if slight leaning out of the mixture improves the performance, try dropping the needle 2 notches (assuming a 5 notch needle) which will give an approximation of what the 58 main jet will be like.
good on you your persistence has payed off good video
Thanks Malc.
Great vid Martin. Good fault finding process glad you got it sorted 👍
Thanks Jamie, runs great now.
Great job Martin.
Thanks Bri
Congratulations ! Hey Martin aren't you happier when it finally starts to work like it should ? I am really happy for you ! I enjoy your channel because its real life instead of some one taking it for a little ride then say yep its all done ! What kind of ultrasonic cleaner do you have ? How much fluid does it hold ? It looks to be worth its weight ! I also hope things are going better for your family ! God bless !
I think it holds 3 litres Cody, not sure what the imperial conversion is lol. Granddaughter is stable at the moment. Tanks bud.
Cheers
Martin
Nice one glad it's sorted , I used to love my Suzuki ts50 that bombed along well too funny how you feel like going really fast when on a bike 😀👍👍
Yes it does Pauly, 40mph seems fast on this lol
Well done Martin got a crackin scooter there hope your brother is pleased.
Great video the scooter looks really good and 45 mph out of a 50 cc scooter is quick i want one now.
It is carrying my 16 stone lol
Well done Martin, I knew you would sort this out eventually. 👍
It did have me stumped for a bit though lol
Knew you'd sort it Martin. Other people's faults, modern petrol and tiny carbs certainly do cause us some headaches. Btw, nice mug lol.
Haha, I thought you'd spot it Malc lol It runs great now. My brother's got it and very happy.
Love your work. Keep it up fella 👍
I have the same scooter, unresticted as well, i put a 76 jet in, and og was Perfect 😁
Great glad it's sorted,,I was thinking it could be the fuel tank vent it did happen to me, but good all is well......dell
Well done mart .like a little terrier when you get the bit between your teeth.i knew you couldnt leave it without trying the big jet again .im supprised tho when you sussed out the vacume pipes you didnt try it first to see if it made any difference. So was it running on the fuel thru the vacume side of the carb rather then the fuel bowl then flooding out ?
Yes Pete, there must have been an issue with that original vacuum unit as well as a dirty carb.
Just for the heck of it, you should try the 65 jet you first had to put in the carburetor. That should really spice her up. Thank you, Martin.
You're correct. The problem will need to be sussed out. A bigger jet again will allow for finer tuning because the volume of air has increased by over100%. The spark plug looks very nice as far as colour is concerned. I don't recommend chopping the side post of the spark plug off. Yes, it will increase igniting strength however, it will dramatically decrease long-term reliability. For racing purposes, it works out great because a race isn't that long and sparks are free to the teams generally and their ignition systems are many times more powerful than what is found on the street. ;)
Glad it is sorted it looked like it was going well at the end
Yes I tok it to my brothers 20 miles away and it was fine.
I personally would have left the bigger jet in place and run the engine around a bit to see if that improved the plug colour, as when you had fuel in it in between the stops, the engine sounded quite sweet to my ear and very lively. The problem with rerestricting it with the bigger exhaust is the air-fuel pump balance will be inequal and I fear you will have lumpy performance.
No lumpy performance Ian, it runs as sweet as a nut with no flat spots. I drove it 20 miles and it runs great. It has the bigger jet in and the restriction plate out as I said at the end of the vid.
well done martin take my hat off to you
well sorted Martin, it's a cool little bike now. :)
yay well done martin, great video glad its all sorted now, your brother will be happy. its a thumbs up from me and i look forward to the next video.
Thanks Dave, it runs great now and he's well pleased. I took it over to him yesterday and it has 20 miles under its belt now and runs great.
Nailed it Martin . Good job .
Cheers Pete.
You could also get a bigger less restricted exhaust for more power if you wanted?
Well done,knew you would crack it in the end,
Congratulations!
Well done Martin.
Thanks bud.
hello martin, be lurking around for some time enjoy your vids, hope this makes sense, if the re-stricter plate was removed the idle jet [set to 1,1/2, turns out from closed would be set with the plate installed], would need to be adjusted maybe 1/2 turn or one complete turn, the carb could be running lean as the throttle is the next step in the carbs operation[main jet] ? when riding the scooter, hope this makes sense because im writing this even im confused, cheers alan
if the choke is stuck in extended position like mine was, you can test it by losening up the 2 screws holding it down and pulling it up a bit and see if it runs better, in my case the et2 wouldn't start at all until i almost pulled the choke out.
the way them pumps work is with fluctuating vacuum causing the diaphragm to move up and down causing it to pump fuel . thats why wen you had it on you tong the vacuum felt a bit weak
nice video well explained greetings from El Salvador
Thanks for watching!
@@retrorestore I truly appreciate your prompt response... question ! hve you had the same problem with a 4T 125, would it be possible that is the jet? best regards
@@indiomechudo1 Yes it could be fuel starvation.
something similar to like this happened to my lawnmower, yes i know a moped inst a lawnmower but i cleaned out the carb and the issue persisted, i read somewhere to change the spark plug and hey presto all issues fixed
Very nice restoration!
great vid Martin glad you got it going mate... atb Steve
Thanks Steve
if you upjet, give it more air. ! 1 Hole with the drill on the side of the airbox is enough. It bogs because it does not have enough air for the extra fuel you gave it.
What size drill bit?
@@safarijonas3490 i'd start small, maybe at 2.5 - 3mm and see how it responds. Increase size until its crisp and responsive and the idle comes down quick. Adjust air/fuel mix screw as you go to see how deep you are. Sweet spot should be 2 turns out.
When you think its good go for a ride wot on a new plug and check the plug. Needs to be light brown.
60 jet was the way to go good work
glad its now sorted for him martin turns out the jetting was right, really dont like the vaccum lines i convert all mine into single line with on off fuel. in this instance it doesnt want the brass plate no more typically take them out when i build 70cc engines weird one
Yes, the plug colour is fine too, no flat spots or bogging and clean revving. No doubt the ultra sonic cleaner with a new vacuum unit did the trick.
Remember. The main jet only affect the 3/4 to full throttle position. So if it was lean, you’d only find it at WOT. 👍
I need to rebuild my carburetor and get new fuel lines with a filter and new air filter, same model. I took two governors off so far.
I'm starting my project with a Et2, everything is fine and the only thing that I have to do is a good paint job... The engine it starts up but whenever I try to go it gets stuck on the same place... Sorry for my grammar, I'm learning english 😓
Does the throttle slide needle have a adjustable circlip postition?? the needle could possibly need be raised a couple notches just a wild suggestion keep up good work
It runs too good to alter the needle height Mark so no reason to do it.
The clip needs to be in the centre of the throttle needle.
This is all so confusing, which one is the throttle slide needle again
Keep up the good videos
Now there's a good idea! ;)
Great videos, thank you.
nice one martin new you would get there in the end.
Why not the 66 jet?
How did you repair the broken clocks?
Br Jan-Ove
Because it bogged down. I sourced another set of clocks from the breakers yard and changed the damaged circuit on the back of the clocks so I retained the original ones.
But when you changed from the 53 to the 60 it went better so i thought 66 would be even better= more fule in.
By the way, I love your channel.
Best regards from sweden.
You certainly know yer onions!!!
When my Piaggio Typhoon 50cc was boggy I assumed it was due water condensed from the air in the gas tank from being stored outdoors?
Whenever I take my fuel line off of the fuel tap itself it pours gas is that normal? If not what does it mean?
thor wilson need to get a new pet cock fuel valve otherwise your carb bowl will over flow and leak petrol
good job well done Martin but riding in a tshirt if you had come off at 45 mph there would av been a lot of skin on the road tut tut
I live in the fast lane Ian, sometimes you just gotta live on the edge.
haha ive got grit in my bum from 1972
Have you had a full tank of fuel every time you've done a test run?
i had same problem how did you fix it
Iv had tht problem before on a moped i done up took bloody ages to sus out 👍
Got there in the end Harry
Good job!
The sprigs in the auto pulley system are weak. Not allowing the engine to rev up before increasing ratio.
No it wasn't that Chris. Carb and Vacuum unit. sorted at the end of the vid.
sweet as a nut-enjoyed that mate cheers
Thanks for watching Lee.
Cheers
Martin
stupid question,is the gas tank vented properly? i had a mower that drove me nuts and it turned out the gas cap was plugged
Yes, that was fine Rog
how about reed valves if it has any,i am almost out of suggestions
Its sorted now as at the end of the vid Rog
Hello dear can I order carborator auto enricher please response
Yes you can
Do you think the last person sold it because of the bogging down problem. I started to cringe when you wore a tee shirt on the bike. I've never seen a ultrasonic cleaner before and thought you was going to make chips.
haha, its a great tool for cleaning hard to get at parts like carbs.
Timing ?
try adjusting the needle on the throttle cable
Its sorted now Mike.
Cheers
Martin
You forgot to remove the emulsion tube (needle jet), on the carb. Put in lighter weights, in the variator, or remove 2 or 3 of them, to keep the revs up.
It runs great, no need to play about with the variator, the owner is 54 not 17 bud.
Um, I'm 57
You must be more into making things go faster than him then as he just wants it for popping to the shops.
Good job Martin I got to hey Harley here in Texas if you want to come to need up for me come on down
Im pretty sure when i de-restricted my piaggio zip moped i put a 56 jet in it and it ran fine :)
What happened to your good video quality, resolution is pretty crappy now
Its only just been uploaded so it improves once rendered properly.
Oh, ok, thanks for the heads up.
It is now, please read comments above
I can't understand how it managed to run at all with the fuel and vacuum lines reversed!
I think there was a problem with the vacuum unit. I have seen people drill them out before where fuel flows through the unit so you never know what previous owners have done.
The whole thing appears to be nothing more than a vacuum operated petcock. Unnecessary complication to protect those who can't remember to open one from themselves. I prefer the KISS Principal! :)
What ever happen to a fuel off and on tap on the bottom of the tank! Vacuum off and on petrol tap is just another thing to go wrong!
Haha, yes I know what you mean.
Looks to me like that stupid airflow restrictor is the main problem? That really hacks me off, they put all these speed restrictors in the system, for no good reason. As long as the rider is a careful driver, wears a helmet and gloves etc., why restrict the tiny mopeds and motor scooters to less than those tiny motors can do? It really angers me.
Its the world we live in now, i'm afraid Jay
up both jets
No need for the smaller one.
Another repair guy like you called mark palmer repairs scooters in his shed on you tube
Not heard of him i'm afraid.
take that plate out carb
It's out
retrorestore yea just replied to your comment and u had done it in video glad got sorted
Maybe it’s the exhaust
Its sorted now Dan as at the end of the vid.
Hy Daniel, how can the exhaust influence the proper functioning of the engine
In a 2 stroke engine,the pressure in the exhaust is an important tuning factor to clear the exhaust gasses so the engine can breath freely, hence Dan's comment.